WN 437 then WN 3388 at Phoenix
St Louis → Phoenix → Milwaukee
Timetable, Phoenix time
13:30WN 437 from St Louis at the gate
09:55WN 3388 to Milwaukee leaves the gate
20 h 25 apart on the timetable, overnight
WN 3388 leaves 20 h 25 after WN 437 arrives on the timetable: more than half a day, so not a connection we count.